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right No. 11,444. July 12th 1882, by 



M7 KENK, MINSTER, O 



— .o—^. -£^<x>°. — 



TO ALL. WHOM IT MAY CONCERN : 

Be it known that I, Mathias Kenk, of Minster, 
Auglaize County, Ohio, have entered for Copyright an 
improvement in Geometrical Puzzle Blocks, consisting 
of SEVEN PIECES or flat blocks of wood or other 
-Suitable material, cut info" live different shapes, viz : 

1. One pair of largest rectangled triangles, (both e- 
qual in size), 2. One rectangled triangle, one half the 
size of either of the largest, 3. Another pair of rect- 
angled triangles, one half as large as the latter, (also 
equal in size), 4. One square as large as both said 
smallest triangles put together, (in a certain way,) and 
5. One paralellogram, as large as both said smallest 
pieces put together (in another way). 

Thus, if you take a piece of thick veneer or paste- 
board, about 4 inches square and cut it into pieces as 
traced by fig. 2 on plate B, or by any other of the 
SEVENTY FIGURES, (which figures are reduced to 
about one twelfth of intended size.) you will obtain a 
lair sample of the Puzzle-blocks, as they are meant to 
be formed. 

With these 7 Blocks you may then compose any one 
of the 70 problems as they are traced on plate A, by- 



putting them together in different positions. To faci- 
litate the puzzling combining, plate B is added to each 
game, which shows how to place pieces, thus making 
a "Key" to the puzzle. 

This game is intended to be instructive to students 
of Geometry, amusing to both children and adults, by 
exercising considerable skill, being a curiosity. Pos- 
sibly it may also serve as a medium for advertising 
the name of firms, goods etc. having been stamped on 
blocks or other parts of its fixings. 

In this case it is intended that the blocks should be 
contained in a shallow box, provided with a suitable 
l'able and the like. 

I am aware that several puzzle-blocks have been 
patented or copyrighted, but all more or less different 
from mine. I lay no claim to anyone of them, how- 
ever constructed, but 

What I claim as my inveution and desire to secure 
by copyright is : 

"Seven pieces of geometrical Puzzle-blocks, as 
indicated by any one of figures on appended 
w plate, as described herein and for the purpose set 
forth above." 



Witness my hand this 1:2th day of July A. 1). 1882. 



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Plat© A. "Problems." 



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Plate B. "Zey." 




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